Investigation of Microhardness of Multiaxially Forged Copper Samples

In engineering practice, high strength materials attract extraordinary attention. Such materials can be produced by many different methods, from which, multiaxial forging was selected. In this work a sum of four samples were compressed by two‒directional multiaxial forging. The achieved logarithmic deformation in each step was 0.8 while the accumulative plastic strain of the workpieces were 0.8, 1.6, 2.4, and 3.2. The hardness of the samples was examined in 200 points of measurement on the surface of the mid-section of each to investigate hardening patterns.